An analyst asks a technician to recommend a solution for a customer in the software development industry, where the customer can test a variety of OSs running the various applications that the customer produces. The customer wants to minimize the investment in hardware. Which of the following solutions should the technician recommend to BEST meet the customer`s requirement? 

Answer options:

A. Purchase a number of low-cost devices, installing the required OSs and applications on each one. Use separate machines for each testing environment.
B. Purchase a high-end system meeting the hardware requirements for all of the individual OSs and applications. Configure a VM for each testing environment.
C. Purchase one computer and create images for each computer configuration and OS. Re-image the machine for each testing environment.
D. Purchase a number of computers, installing a VM on each one. Configure each VM with an OS for the testing environment.

B